Photo from UNIAN

It is noted that during the recent contacts of Ukrainian President Petro Poroshenko with German Chancellor Angela Merkel and French President Francois Hollande, the parties were working out various dates for the Berlin summit.

Read alsoPutin shuns Paris visit after France offers talks only on Syria - Reuters"As of October 11, the Ukrainian side has not yet received a formal invitation to the Normandy Four summit," the press-service said.

As UNIAN reported earlier, according to Russian Ambassador to France Alexander Orlov, German Chancellor Angela Merkel has invited the other three leaders of the "Normandy Quartet" - Ukraine, France and Russia - for dinner in Berlin on October 19.